Granite Bay, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Granite Bay, a community in Placer County, California.
Today
104°F
Sunny
Sunny, with a high near 104. South southwest wind around 6 mph.
7-day forecast for Granite Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 104°F | Sunny | 6 mph SSW | 0% |
| Tonight | 66°F | Clear | 7 mph S | 0% |
| Wednesday | 102°F | Sunny | 7 mph SSW | 0% |
| Wednesday Night | 66°F | Clear | 6 mph S | 0% |
| Thursday | 102°F | Sunny | 6 mph SSW | 0% |
| Thursday Night | 67°F | Clear | 6 mph S | 0% |
| Friday | 103°F | Sunny | 5 mph SSW | 0% |
| Friday Night | 68°F | Clear | 6 mph S | 0% |
| Saturday | 104°F | Sunny | 5 mph S | 0% |
| Saturday Night | 69°F | Clear | 7 mph S | 0% |
| Sunday | 101°F | Sunny | 7 mph S | 0% |
| Sunday Night | 65°F | Mostly Clear | 7 mph S | 0% |
| Monday | 96°F | Sunny | 5 to 8 mph S | 0% |
| Monday Night | 62°F | Mostly Clear | 5 to 8 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Granite Bay (38.760, -121.168). Updated through the day.
Growing snapshot for Granite Bay
Last spring frost
Feb 25
First fall frost
Dec 5
Growing season
286 days
Hardiness zone
9b
More local growing data for Granite Bay: nearby ZIP 95746 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Alta
Auburn
Carnelian Bay
Cedar Flat
Colfax
Dollar Point
Dutch Flat
Foresthill
Kings Beach
Kingvale
Lake of the Pines
Lincoln
Loomis
Meadow Vista
Newcastle
North Auburn
Penryn
Rocklin
Roseville
Sheridan
Soda Springs
Sunnyside-Tahoe City
Tahoe Vista
Climate data from the nearest NOAA station, Auburn, Ca (11.9 mi from Granite Bay). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.